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1022121031 = 10735327061
BaseRepresentation
bin111100111011000…
…101010001000111
32122020022010110111
4330323011101013
54043130333111
6245231333451
734220612461
oct7473052107
92566263414
101022121031
11484a62728
12246381287
131339b3b59
1499a69131
155eb00a21
hex3cec5447

1022121031 has 8 divisors (see below), whose sum is σ = 1034634384. Its totient is φ = 1009662720.

The previous prime is 1022121011. The next prime is 1022121043. The reversal of 1022121031 is 1301212201.

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

It is a cyclic number.

It is not a de Polignac number, because 1022121031 - 211 = 1022118983 is a prime.

It is a super-2 number, since 2×10221210312 = 2089462804025005922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24241 + ... + 51301.

It is an arithmetic number, because the mean of its divisors is an integer number (129329298).

Almost surely, 21022121031 is an apocalyptic number.

1022121031 is a deficient number, since it is larger than the sum of its proper divisors (12513353).

1022121031 is a wasteful number, since it uses less digits than its factorization.

1022121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1022121031 is about 31970.6276291223. The cubic root of 1022121031 is about 1007.3199643823.

Adding to 1022121031 its reverse (1301212201), we get a palindrome (2323333232).

The spelling of 1022121031 in words is "one billion, twenty-two million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 107 353 27061 37771 2895527 9552533 1022121031