1020122010021 has 8 divisors (see below), whose sum is σ = 1373629637664. Its totient is φ = 673347861200.

The previous prime is 1020122009911. The next prime is 1020122010049. The reversal of 1020122010021 is 1200102210201.

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 1020122010021 - 2¹¹ = 1020122007973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020122009979 and 1020122010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020122010521) 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, 1683369351 + ... + 1683369956.

It is an arithmetic number, because the mean of its divisors is an integer number (171703704708).

Almost surely, 2^{1020122010021} is an apocalyptic number.

It is an amenable number.

1020122010021 is a deficient number, since it is larger than the sum of its proper divisors (353507627643).

1020122010021 is a wasteful number, since it uses less digits than its factorization.

1020122010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366739411.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020122010021 its reverse (1200102210201), we get a palindrome (2220224220222).

The spelling of 1020122010021 in words is "one trillion, twenty billion, one hundred twenty-two million, ten thousand, twenty-one".