201202110021220 has 96 divisors (see below), whose sum is σ = 531999386908416. Its totient is φ = 62091431616000.

The previous prime is 201202110021113. The next prime is 201202110021251. The reversal of 201202110021220 is 22120011202102.

It is a happy number.

It is a super-2 number, since 2×201202110021220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201202110021194 and 201202110021203.

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, 646630207 + ... + 646941286.

It is an arithmetic number, because the mean of its divisors is an integer number (5541660280296).

Almost surely, 2^{201202110021220} is an apocalyptic number.

201202110021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201202110021220 is an abundant number, since it is smaller than the sum of its proper divisors (330797276887196).

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

201202110021220 is a wasteful number, since it uses less digits than its factorization.

201202110021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293571621 (or 1293571619 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201202110021220 its reverse (22120011202102), we get a palindrome (223322121223322).

The spelling of 201202110021220 in words is "two hundred one trillion, two hundred two billion, one hundred ten million, twenty-one thousand, two hundred twenty".