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121012022210202 = 2342385731311053
BaseRepresentation
bin11011100000111101001110…
…100110001110111010011010
3120212110122011220010000110000
4123200331032212032322122
5111330130110141211302
61105212053333033430
734326554502062544
oct3340751646167232
9525418156100400
10121012022210202
1135615a01840612
12116a4b35485876
13526a500335456
1421c5028036694
15decc0157831c
hex6e0f4e98ee9a

121012022210202 has 40 divisors (see below), whose sum is σ = 271167942858516. Its totient is φ = 40335648651648.

The previous prime is 121012022210137. The next prime is 121012022210213. The reversal of 121012022210202 is 202012220210121.

It is a happy number.

121012022210202 is a `hidden beast` number, since 1 + 210 + 1 + 20 + 22 + 210 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119295086328441 + 1716935881761 = 10922229^2 + 1310319^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11790693 + ... + 19520360.

Almost surely, 2121012022210202 is an apocalyptic number.

121012022210202 is an abundant number, since it is smaller than the sum of its proper divisors (150155920648314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012022210202 is a wasteful number, since it uses less digits than its factorization.

121012022210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31334924 (or 31334915 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121012022210202 its reverse (202012220210121), we get a palindrome (323024242420323).

The spelling of 121012022210202 in words is "one hundred twenty-one trillion, twelve billion, twenty-two million, two hundred ten thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 23857 47714 71571 143142 214713 429426 644139 1288278 1932417 3864834 31311053 62622106 93933159 187866318 281799477 563598954 845398431 1690796862 2536195293 5072390586 746987791421 1493975582842 2240963374263 4481926748526 6722890122789 13445780245578 20168670368367 40337340736734 60506011105101 121012022210202