10202021012 has 24 divisors (see below), whose sum is σ = 19064962560. Its totient is φ = 4766237280.

The previous prime is 10202020973. The next prime is 10202021023. The reversal of 10202021012 is 21012020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10202020984 and 10202021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414928 + ... + 1422119.

It is an arithmetic number, because the mean of its divisors is an integer number (794373440).

Almost surely, 2^10202021012 is an apocalyptic number.

It is an amenable number.

10202021012 is a deficient number, since it is larger than the sum of its proper divisors (8862941548).

10202021012 is a wasteful number, since it uses less digits than its factorization.

10202021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837111 (or 2837109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10202021012 its reverse (21012020201), we get a palindrome (31214041213).

The spelling of 10202021012 in words is "ten billion, two hundred two million, twenty-one thousand, twelve".