20011201001210 has 32 divisors (see below), whose sum is σ = 36877541006592. Its totient is φ = 7814150688960.

The previous prime is 20011201001191. The next prime is 20011201001219. The reversal of 20011201001210 is 1210010211002.

It is a junction number, because it is equal to n+sod(n) for n = 20011201001191 and 20011201001200.

It is not an unprimeable number, because it can be changed into a prime (20011201001219) 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, 11632049 + ... + 13241108.

It is an arithmetic number, because the mean of its divisors is an integer number (1152423156456).

Almost surely, 2^{20011201001210} is an apocalyptic number.

20011201001210 is a deficient number, since it is larger than the sum of its proper divisors (16866340005382).

20011201001210 is a wasteful number, since it uses less digits than its factorization.

20011201001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24875078.

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

Adding to 20011201001210 its reverse (1210010211002), we get a palindrome (21221211212212).

The spelling of 20011201001210 in words is "twenty trillion, eleven billion, two hundred one million, one thousand, two hundred ten".