102021200121022 has 32 divisors (see below), whose sum is σ = 189829876948992. Its totient is φ = 40042239650784.

The previous prime is 102021200121019. The next prime is 102021200121023. The reversal of 102021200121022 is 220121002120201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102021200120987 and 102021200121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021200121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206890448 + ... + 2206936675.

It is an arithmetic number, because the mean of its divisors is an integer number (5932183654656).

Almost surely, 2^{102021200121022} is an apocalyptic number.

102021200121022 is a deficient number, since it is larger than the sum of its proper divisors (87808676827970).

102021200121022 is a wasteful number, since it uses less digits than its factorization.

102021200121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413827272.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102021200121022 its reverse (220121002120201), we get a palindrome (322142202241223).

The spelling of 102021200121022 in words is "one hundred two trillion, twenty-one billion, two hundred million, one hundred twenty-one thousand, twenty-two".