1021102010010 has 24 divisors (see below), whose sum is σ = 2654865226260. Its totient is φ = 272293869312.

The previous prime is 1021102010003. The next prime is 1021102010053. The reversal of 1021102010010 is 100102011201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 977375436129 + 43726573881 = 988623^2 + 209109^2 .

It is a super-3 number, since 3×1021102010010³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1021102009974 and 1021102010001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5672788855 + ... + 5672789034.

Almost surely, 2^{1021102010010} is an apocalyptic number.

1021102010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021102010010 is an abundant number, since it is smaller than the sum of its proper divisors (1633763216250).

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

1021102010010 is a wasteful number, since it uses less digits than its factorization.

1021102010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345577902 (or 11345577899 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1021102010010 its reverse (100102011201), we get a palindrome (1121204021211).

The spelling of 1021102010010 in words is "one trillion, twenty-one billion, one hundred two million, ten thousand, ten".