201012121012021 has 16 divisors (see below), whose sum is σ = 221533387371648. Its totient is φ = 180866674072000.

The previous prime is 201012121012019. The next prime is 201012121012033. The reversal of 201012121012021 is 120210121210102.

It is a cyclic number.

It is not a de Polignac number, because 201012121012021 - 2¹ = 201012121012019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012121011986 and 201012121012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012121012321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27937186 + ... + 34387651.

It is an arithmetic number, because the mean of its divisors is an integer number (13845836710728).

Almost surely, 2^{201012121012021} is an apocalyptic number.

It is an amenable number.

201012121012021 is a deficient number, since it is larger than the sum of its proper divisors (20521266359627).

201012121012021 is a wasteful number, since it uses less digits than its factorization.

201012121012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62327852.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201012121012021 its reverse (120210121210102), we get a palindrome (321222242222123).

The spelling of 201012121012021 in words is "two hundred one trillion, twelve billion, one hundred twenty-one million, twelve thousand, twenty-one".