1021021112 has 16 divisors (see below), whose sum is σ = 1915552800. Its totient is φ = 510207040.

The previous prime is 1021021103. The next prime is 1021021121. The reversal of 1021021112 is 2111201201.

It is an interprime number because it is at equal distance from previous prime (1021021103) and next prime (1021021121).

It is a super-2 number, since 2×1021021112² = 2084968222299433088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021021093 and 1021021102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23312 + ... + 50847.

It is an arithmetic number, because the mean of its divisors is an integer number (119722050).

Almost surely, 2^1021021112 is an apocalyptic number.

It is an amenable number.

1021021112 is a deficient number, since it is larger than the sum of its proper divisors (894531688).

1021021112 is a wasteful number, since it uses less digits than its factorization.

1021021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75886 (or 75882 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1021021112 is about 31953.4209749128. The cubic root of 1021021112 is about 1006.9585042400.

Adding to 1021021112 its reverse (2111201201), we get a palindrome (3132222313).

The spelling of 1021021112 in words is "one billion, twenty-one million, twenty-one thousand, one hundred twelve".