1220221202010 has 32 divisors (see below), whose sum is σ = 2928586268160. Its totient is φ = 325386166848.

The previous prime is 1220221201993. The next prime is 1220221202027. The reversal of 1220221202010 is 102021220221.

It is an interprime number because it is at equal distance from previous prime (1220221201993) and next prime (1220221202027).

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

It is a Curzon number.

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, 1357524 + ... + 2069616.

It is an arithmetic number, because the mean of its divisors is an integer number (91518320880).

Almost surely, 2^{1220221202010} is an apocalyptic number.

1220221202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220221202010 is an abundant number, since it is smaller than the sum of its proper divisors (1708365066150).

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

1220221202010 is a wasteful number, since it uses less digits than its factorization.

1220221202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769222.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1220221202010 its reverse (102021220221), we get a palindrome (1322242422231).

The spelling of 1220221202010 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred two thousand, ten".