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1012121122 = 2506060561
BaseRepresentation
bin111100010100111…
…011111000100010
32121112111002011111
4330110323320202
54033100333442
6244233133534
734036613305
oct7424737042
92545432144
101012121122
1147a352641
12242b5a2aa
131318c234c
14985c4b3c
155dcc7b17
hex3c53be22

1012121122 has 4 divisors (see below), whose sum is σ = 1518181686. Its totient is φ = 506060560.

The previous prime is 1012121113. The next prime is 1012121137. The reversal of 1012121122 is 2211212101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211212101 = 7315887443.

It can be written as a sum of positive squares in only one way, i.e., 695957161 + 316163961 = 26381^2 + 17781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253030279 + ... + 253030282.

Almost surely, 21012121122 is an apocalyptic number.

1012121122 is a deficient number, since it is larger than the sum of its proper divisors (506060564).

1012121122 is an equidigital number, since it uses as much as digits as its factorization.

1012121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506060563.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1012121122 is about 31813.8511029394. The cubic root of 1012121122 is about 1004.0241584267.

Adding to 1012121122 its reverse (2211212101), we get a palindrome (3223333223).

The spelling of 1012121122 in words is "one billion, twelve million, one hundred twenty-one thousand, one hundred twenty-two".

Divisors: 1 2 506060561 1012121122