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1012120222 = 21289392599
BaseRepresentation
bin111100010100111…
…011101010011110
32121112111000221011
4330110323222132
54033100321342
6244233125434
734036610551
oct7424735236
92545430834
101012120222
1147a3519a3
12242b5987a
131318c1b09
14985c4698
155dcc7717
hex3c53ba9e

1012120222 has 8 divisors (see below), whose sum is σ = 1519362000. Its totient is φ = 505666224.

The previous prime is 1012120217. The next prime is 1012120223. The reversal of 1012120222 is 2220212101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012120223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193722 + ... + 198877.

It is an arithmetic number, because the mean of its divisors is an integer number (189920250).

Almost surely, 21012120222 is an apocalyptic number.

1012120222 is a deficient number, since it is larger than the sum of its proper divisors (507241778).

1012120222 is a wasteful number, since it uses less digits than its factorization.

1012120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393890.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1012120222 is about 31813.8369581539. The cubic root of 1012120222 is about 1004.0238608267.

Adding to 1012120222 its reverse (2220212101), we get a palindrome (3232332323).

The spelling of 1012120222 in words is "one billion, twelve million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 1289 2578 392599 785198 506060111 1012120222