102011211021001 has 2 divisors, whose sum is σ = 102011211021002. Its totient is φ = 102011211021000.

The previous prime is 102011211020981. The next prime is 102011211021101. The reversal of 102011211021001 is 100120112110201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85274512736400 + 16736698284601 = 9234420^2 + 4091051^2 .

It is a cyclic number.

It is not a de Polignac number, because 102011211021001 - 2¹⁵ = 102011210988233 is a prime.

It is not a weakly prime, because it can be changed into another prime (102011211021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005605510500 + 51005605510501.

It is an arithmetic number, because the mean of its divisors is an integer number (51005605510501).

Almost surely, 2^{102011211021001} is an apocalyptic number.

It is an amenable number.

102011211021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011211021001 is an equidigital number, since it uses as much as digits as its factorization.

102011211021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102011211021001 its reverse (100120112110201), we get a palindrome (202131323131202).

The spelling of 102011211021001 in words is "one hundred two trillion, eleven billion, two hundred eleven million, twenty-one thousand, one".