201001210021010 has 64 divisors (see below), whose sum is σ = 419375471569920. Its totient is φ = 67936211066880.

The previous prime is 201001210020983. The next prime is 201001210021057. The reversal of 201001210021010 is 10120012100102.

It is a junction number, because it is equal to n+sod(n) for n = 201001210020982 and 201001210021000.

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, 24807389 + ... + 31896848.

It is an arithmetic number, because the mean of its divisors is an integer number (6552741743280).

Almost surely, 2^{201001210021010} is an apocalyptic number.

201001210021010 is an abundant number, since it is smaller than the sum of its proper divisors (218374261548910).

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

201001210021010 is a wasteful number, since it uses less digits than its factorization.

201001210021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56704971.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201001210021010 its reverse (10120012100102), we get a palindrome (211121222121112).

The spelling of 201001210021010 in words is "two hundred one trillion, one billion, two hundred ten million, twenty-one thousand, ten".