1021210122210 has 32 divisors (see below), whose sum is σ = 2454074988480. Its totient is φ = 271970399808.

The previous prime is 1021210122199. The next prime is 1021210122253. The reversal of 1021210122210 is 122210121201.

It is a super-2 number, since 2×1021210122210² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1021210122210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21995140 + ... + 22041519.

It is an arithmetic number, because the mean of its divisors is an integer number (76689843390).

Almost surely, 2^{1021210122210} is an apocalyptic number.

1021210122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021210122210 is an abundant number, since it is smaller than the sum of its proper divisors (1432864866270).

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

1021210122210 is a wasteful number, since it uses less digits than its factorization.

1021210122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44037442.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021210122210 its reverse (122210121201), we get a palindrome (1143420243411).

The spelling of 1021210122210 in words is "one trillion, twenty-one billion, two hundred ten million, one hundred twenty-two thousand, two hundred ten".