10021212001220 has 24 divisors (see below), whose sum is σ = 24050908803264. Its totient is φ = 3435844114656.

The previous prime is 10021212001211. The next prime is 10021212001279. The reversal of 10021212001220 is 2210021212001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10021212001195 and 10021212001204.

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, 35790042722 + ... + 35790043001.

It is an arithmetic number, because the mean of its divisors is an integer number (1002121200136).

Almost surely, 2^{10021212001220} is an apocalyptic number.

10021212001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021212001220 is an abundant number, since it is smaller than the sum of its proper divisors (14029696802044).

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

10021212001220 is a wasteful number, since it uses less digits than its factorization.

10021212001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71580085739 (or 71580085737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021212001220 its reverse (2210021212001), we get a palindrome (12231233213221).

The spelling of 10021212001220 in words is "ten trillion, twenty-one billion, two hundred twelve million, one thousand, two hundred twenty".