1220211101210 has 16 divisors (see below), whose sum is σ = 2198221059816. Its totient is φ = 487675312128.

The previous prime is 1220211101203. The next prime is 1220211101269. The reversal of 1220211101210 is 121011120221.

It can be written as a sum of positive squares in 4 ways, for example, as 658890981841 + 561320119369 = 811721^2 + 749213^2 .

It is a super-2 number, since 2×1220211101210² (a number of 25 digits) contains 22 as substring.

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, 51128519 + ... + 51152378.

Almost surely, 2^{1220211101210} is an apocalyptic number.

1220211101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220211101210 is a deficient number, since it is larger than the sum of its proper divisors (978009958606).

1220211101210 is a wasteful number, since it uses less digits than its factorization.

1220211101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102282097.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220211101210 its reverse (121011120221), we get a palindrome (1341222221431).

The spelling of 1220211101210 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred one thousand, two hundred ten".