1212010201220 has 96 divisors (see below), whose sum is σ = 3208984805376. Its totient is φ = 374225587200.

The previous prime is 1212010201187. The next prime is 1212010201231. The reversal of 1212010201220 is 221020102121.

It is a super-2 number, since 2×1212010201220² (a number of 25 digits) contains 22 as substring.

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 = 1212010201195 and 1212010201204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8046596 + ... + 8195835.

It is an arithmetic number, because the mean of its divisors is an integer number (33426925056).

Almost surely, 2^{1212010201220} is an apocalyptic number.

1212010201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212010201220 is an abundant number, since it is smaller than the sum of its proper divisors (1996974604156).

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

1212010201220 is a wasteful number, since it uses less digits than its factorization.

1212010201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242501 (or 16242499 counting only the distinct ones).

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

Adding to 1212010201220 its reverse (221020102121), we get a palindrome (1433030303341).

Subtracting from 1212010201220 its reverse (221020102121), we obtain a palindrome (990990099099).

The spelling of 1212010201220 in words is "one trillion, two hundred twelve billion, ten million, two hundred one thousand, two hundred twenty".