1220101121010 has 32 divisors (see below), whose sum is σ = 2928273716160. Its totient is φ = 325356851648.

The previous prime is 1220101120999. The next prime is 1220101121011. The reversal of 1220101121010 is 101211010221.

It is not an unprimeable number, because it can be changed into a prime (1220101121011) 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, 4042924 + ... + 4334216.

It is an arithmetic number, because the mean of its divisors is an integer number (91508553630).

Almost surely, 2^{1220101121010} is an apocalyptic number.

1220101121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220101121010 is an abundant number, since it is smaller than the sum of its proper divisors (1708172595150).

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

1220101121010 is a wasteful number, since it uses less digits than its factorization.

1220101121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430922.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220101121010 its reverse (101211010221), we get a palindrome (1321312131231).

The spelling of 1220101121010 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred twenty-one thousand, ten".